Process of treating ores.



T0 at whom it may concern.-

umrnn e r-"ares PATENT OFFICE.

CHARLES E. BAKER AND ARTHUR W. BURWELL, OF CLEVELAND, OHIO.

PRocEss OF TREATING ORES.

Specification of Letters Patent.

Patented. Jan. 1 5, 1907.

Application filed July 5, 1904. Renewed July 5, 1906- Serial No. 324,792.

Be it known that we, CHARLEs E. BAKER,

and ARTHUR W. BURwELL, citizens of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Processes of Treating Ores, of which the following is a specification. I

This invention is a process for the treatment of ores which contain the sulfids of such metals as yield fusible chlorids. Y

. The process will be particularly described as applied to the separation of lead and zinc from their sulfid ores; but the invention is not limited to the recovery of these particular metals.

- of the reacting odies in accordance with the in which M re resents a metal, as lead or zinc,

equation MS 8,01 MCI 38,

whose chlori is fusible.

We do not limit ourselves to any particular temperature for carrying out the reaction;

but we prefer to heat the ore above the fusingoint of the chlorid of the metal or metals to i e recovered. The separated sulfur may be point of sulfur it may be distilled and recovered in any suitable condensing apparatus.

We prefer to electrolyze the metallic v chlorid for the recovery of the metal. In such case the anode is preferably of graphite, and the cathode may consist of a molten body of the metal to be recovered. The chlorin separated at the anode may be used for producing sulfur chlorid to be used in the continuation of the process or may be otherwise utilized as desired.

1. The process which consists in subjecting pulverulent sulfid ores of metals forming fusible chloride to the action of sulfur chlorid, thereby producing the chlorid of the metal, fusing said chlorid and recovering the metal, substantially as described.

2. The process which consists in subjecting pulverulent sulfid ores of metals forming fusible chloride to the action of sulfur chlorid, thereby producing the chlorid of the metal, fusing said chlorid and recovering the metal by electrolyzing the fused chlorid, substantially as described.

3. The process which consists in subjecting ulverulent sulfid ores of metals forming fusible chlorids at a temperature above the fusing-point of the chlorid to the action of sulfur chlorid, thereby producing the chlorid of the metal and recovering the metal from the fused chlorid, substantially as described.

. 4. The process whichconsists in subjecting pulverulent sulfid ores of metals forming fusible chlorids at a tem erature above the fusing-point of the chlorid to the action of sulfur chlorid, thereby producing the chlorid of the metal and recovering the metal by electrolyzing the fused chlorid, substantially as described.

In testimony whereof we aflix our signa tures in presence of two witnesses.

CHARLES E. BAKER. ARTHUR W. BURWELL. Witnesses:

FRANK N. SEALAND.

CARL RUssELL FOSTER. 

